<!-- 手风琴模式 -->

<template>
  <div><u-collapse accordion>
    <u-collapse-item title="面板1">Content1</u-collapse-item>
    <u-collapse-item title="面板2" expanded>Content2</u-collapse-item>
    <u-collapse-item title="面板3">Content3</u-collapse-item>
</u-collapse></div>
</template>